http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50010
--- Comment #8 from Gerald Pfeifer <gerald at pfeifer dot com> 2011-08-20 21:04:56 UTC --- (In reply to comment #7) >> On FC14 x86_64, after installing the i686 libraries for >> {gmp,libmpc,mpfr}{,-devel}, built against trunk >> revision 177922 (last changed 2011-08-19 17:18:07 PDT), >> the build completed *without* error. > This also completed *without* error. I believe the difference may be i686 versus i486: config/i386/freesd.h has #define SUBTARGET32_DEFAULT_CPU "i486" and does not use a different default otherwise.